High-sealing-performance hydrogen collecting device for hydrogen production equipment

By introducing sealing components such as moving blocks, pressure blocks, and gasbags into the hydrogen collection device, the problem of insufficient flange sealing is solved, achieving stability and safety in hydrogen collection, and enabling timely detection and rapid response to leaks.

CN223622689UActive Publication Date: 2025-12-02ANHUI DUSHUN NEW ENERGY EQUIP MFG CO LTD
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Patent Information

Application Number
CN202520296853.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-12-02
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing hydrogen collection devices have insufficient sealing performance after long-term use, and the flange sealing strips are prone to corrosion and damage, leading to hydrogen leakage that is difficult to detect in time, affecting the working environment and safety.

Method used

A sealing assembly comprising a moving block, a pressure block, a housing, and an airbag is designed. The pressure block clamps against the flange, the sealing performance is improved by the sealing strip, the leaked gas is collected in the housing, and the airbag indicates the location of the leak.

Benefits of technology

It improves the sealing performance of the flange and the safety of hydrogen collection, enabling timely detection and rapid response to leaks, and ensuring a stable and safe working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-sealing hydrogen collecting device for hydrogen production equipment, and belongs to the field of hydrogen production equipment. The method is used for solving the problems that the sealing performance is poor and the sealing performance of a joint cannot be quickly responded and judged. Through the arrangement of the pressing block, the pressing block abuts against the flange, at the moment, the sealing strip is located at the joint of the flange, namely the flange is clamped through the pressing block, the stability of the flange is guaranteed when the collecting tank is used, meanwhile, through the arrangement of the sealing strip, the sealing performance of the flange is further improved, and if the flange leaks and gas enters the shell, the sealing strip is not damaged. The shell is used for collecting gas, the gas is prevented from being directly leaked into the environment, the safety during gas collection is effectively improved, meanwhile, along with gas leakage, the gas enters the gas bag from the shell, then the gas bag is gradually expanded, the expanded gas bag plays an indication role, and therefore the leaked gas is timely observed, and then rapid response and judgment are carried out.
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Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment, and in particular to a highly sealed hydrogen collection device for hydrogen production equipment. Background Technology

[0002] With the development of science and technology, hydrogen is being used more and more as a new energy source. There are various technologies for producing hydrogen, but the method for producing high purity is water electrolysis. Currently, hydrogen is generally produced by water electrolysis, which uses electrical energy to decompose water and obtain hydrogen. After the hydrogen is produced, it needs to be collected by a hydrogen collection device for easy storage.

[0003] However, in the use of existing hydrogen collection devices, due to the lack of sealing components, the sealing performance of the pipe connections is only related to the sealing strip in the flange. However, under long-term use, the sealing strip in the flange is prone to corrosion and damage, which leads to gas leakage from the flange gaps and affects the working environment.

[0004] Furthermore, since hydrogen is colorless, when hydrogen leaks from the connection, the lack of an indicator structure makes it difficult to observe and alarm in a timely manner, and it is impossible to quickly react to and judge the sealing of the connection.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a highly sealed hydrogen collection device for hydrogen production equipment, so as to solve the technical defects mentioned in the background art.

[0007] The purpose of this utility model can be achieved through the following technical solution: a high-sealing hydrogen collection device for hydrogen production equipment, including a collection tank, an inlet pipe fixedly installed on the top of the collection tank, a gas delivery pipe fixedly installed on the inlet pipe through a flange, and a sealing component fixedly installed on the top of the collection tank.

[0008] The sealing assembly includes a movable block, a pressure block, and a housing. The movable block is movably mounted on the top of the collection tank and is located on both sides of the air inlet pipe. The pressure block and the housing are both fixedly mounted on the movable block.

[0009] The pressure block and flange are located in the housing. The pressure block is connected to the flange. A sealing strip is fixedly installed in the pressure block. An airbag is fixedly installed at the bottom of the housing.

[0010] Preferably, a connecting plate is fixedly installed on the top of the collection tank, and an adjusting bolt is movably installed on the connecting plate by means of threads. The connecting plate is located on both sides of the flange, and one end of the adjusting bolt is movably connected to the moving block.

[0011] Preferably, a locking block is fixedly installed on the movable block, the locking block being located at the top and bottom of the flange, and the locking block abutting against the flange.

[0012] Preferably, multiple pressure blocks are provided, and the multiple pressure blocks are arranged to form a ring, with the sealing strip located at the center of the pressure blocks.

[0013] Preferably, multiple housings are provided, and the multiple housings are evenly spaced on the flange.

[0014] Preferably, the shell has a cavity inside, the airbag is connected to the cavity, and a spring is fixedly installed inside the airbag.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) This utility model uses the combination of moving block, pressure block and sealing strip. After the gas pipeline and the gas inlet pipe are connected by a flange, the moving block is adjusted so that the pressure block moves towards the flange at the same time until the pressure block abuts against the flange. At this time, the sealing strip is located at the flange connection. The flange is clamped by the pressure block to ensure the stability of the flange when the collection tank is in use. At the same time, the sealing strip further improves the sealing performance of the flange.

[0017] (2) By using the shell and the airbag together, if the flange leaks during long-term use, the gas enters the shell and is collected by the shell to prevent it from leaking directly into the environment, thus effectively improving the safety of gas collection. At the same time, as the gas leaks, the gas enters the airbag from the shell, which causes the airbag to gradually expand. The expanded airbag serves as an indicator, thereby enabling timely observation of the leaked gas and enabling rapid response and judgment. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings;

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the collection tank in this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing component in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the pressure block in this utility model;

[0023] Figure 5 This is a schematic diagram of the shell structure in this utility model.

[0024] Legend: 1. Collection tank; 101. Air inlet pipe; 102. Air delivery pipe; 2. Sealing assembly; 201. Moving block; 202. Pressing block; 203. Housing; 204. Sealing strip; 205. Airbag; 206. Connecting plate; 207. Adjusting bolt; 208. Locking block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] This embodiment addresses the problem in existing hydrogen collection devices where, due to the lack of sealing components, the sealing performance of pipe connections relies solely on the sealing strip in the flange. However, over prolonged use, the sealing strip in the flange is prone to corrosion and damage, leading to gas leakage from the flange gaps and impacting the working environment.

[0028] Please see Figure 1 - Figure 5 As shown, this embodiment is a high-sealing hydrogen collection device for hydrogen production equipment, including a collection tank 1, an inlet pipe 101 fixedly installed on the top of the collection tank 1, a gas transmission pipe 102 fixedly installed on the inlet pipe 101 through a flange, and a sealing assembly 2 fixedly installed on the top of the collection tank 1.

[0029] The sealing assembly 2 includes a movable block 201, a pressure block 202, and a housing 203. The movable block 201 is movably installed on the top of the collection tank 1 and is located on both sides of the air inlet pipe 101. The pressure block 202 and the housing 203 are both fixedly installed on the movable block 201. A connecting plate 206 is fixedly installed on the top of the collection tank 1. An adjusting bolt 207 is movably installed on the connecting plate 206 by means of threads. The connecting plate 206 is located on both sides of the flange. One end of the adjusting bolt 207 is movably connected to the movable block 201. In actual use, by turning the adjusting bolt 207, the adjusting bolt 207 is moved by means of threads, thereby moving the movable block 201.

[0030] The pressure block 202 and the flange are located in the housing 203. The pressure block 202 abuts against the flange. A sealing strip 204 is fixedly installed in the pressure block 202. A locking block 208 is fixedly installed on the moving block 201. The locking block 208 is located at the top and bottom of the flange and abuts against the flange. Multiple pressure blocks 202 are provided, and multiple pressure blocks 202 form a ring. The sealing strip 204 is located at the center of the pressure block 202. After the pressure block 202 abuts against the flange, the pressure block 202 abuts against the top and bottom of the flange, thereby applying a certain pressure between the flanges and further improving the stability of the flange.

[0031] After the pressure block 202 abuts against the flange, the sealing strip 204 is located at the flange connection. The sealing strip 204 is made of rubber. By utilizing the elastic deformation of the sealing strip 204, the sealing strip 204 makes closer contact with the flange, further improving the flange sealing performance.

[0032] After the gas supply pipe 102 and the gas inlet pipe 101 are connected by a flange, the moving block 201 is adjusted so that the pressure block 202 moves toward the flange at the same time until the pressure block 202 abuts against the flange. At this time, the sealing strip 204 is located at the flange connection. The flange is clamped by the pressure block 202 to ensure the stability of the flange when the collection tank 1 is in use. At the same time, the sealing strip 204 further improves the sealing performance of the flange.

[0033] Example 2:

[0034] This embodiment addresses the problem that, because hydrogen is colorless, the lack of an indicator structure makes it difficult to observe and alarm on leaked hydrogen at connections in a timely manner, and hinders rapid response and assessment of the sealing performance of connections.

[0035] Please see Figure 4 - Figure 5 As shown, this utility model also includes a sealing strip 204, an airbag 205 is fixedly installed at the bottom of the housing 203, a cavity is provided inside the housing 203, the airbag 205 communicates with the cavity, a spring is fixedly installed inside the airbag 205, one end of the spring in the airbag 205 is fixedly connected to the inner wall of the airbag 205, and the other end is fixedly connected to the housing 203. The spring is used for the airbag 205 to reset, which is not shown in the figure.

[0036] The flange has multiple housings 203, which are evenly spaced on the flange, thus providing multiple airbags 205. When a gas leaks, the airbags 205 gradually expand. By observing the degree of expansion of the airbags 205 at different locations, the location of the leak can be quickly determined, improving the efficiency of subsequent maintenance and making it highly practical.

[0037] In the event of a leak in the flange during prolonged use, gas enters the housing 203 and is collected by the housing 203 to prevent direct leakage into the environment, thus improving the safety of gas collection. Simultaneously, as gas leaks, it enters the airbag 205 from the housing 203, causing the airbag 205 to gradually expand. The expanding airbag 205 serves as an indicator, enabling timely observation of the leaked gas and facilitating rapid response and judgment.

[0038] Combining Embodiment 1 and Embodiment 2, the pressure block 202 is positioned to abut against the flange. At this time, the sealing strip 204 is located at the flange connection, i.e., the flange is clamped by the pressure block 202 to ensure the stability of the flange when the collection tank 1 is in use. At the same time, the sealing strip 204 further improves the sealing performance of the flange. If the flange leaks, the gas enters the housing 203 and is collected by the housing 203 to prevent it from leaking directly into the environment, effectively improving the safety of gas collection. As the gas leaks, the gas enters the air bladder 205 from the housing 203, causing the air bladder 205 to gradually expand. The expanding air bladder 205 serves as an indicator, thereby enabling timely observation of the leaked gas and allowing for rapid response and judgment.

[0039] The working process and principle of this utility model are as follows:

[0040] First, by setting the pressure block 202, the pressure block 202 abuts against the flange. At this time, the sealing strip 204 is located at the flange connection. That is, the flange is clamped by the pressure block 202 to ensure the stability of the flange when the collection tank 1 is in use. At the same time, the sealing strip 204 further improves the sealing performance of the flange.

[0041] Furthermore, if a flange leaks, the gas enters the housing 203 and is collected by the housing 203, preventing it from leaking directly into the environment and effectively improving the safety of gas collection.

[0042] Furthermore, as gas leaks, gas enters the airbag 205 from the shell 203, causing the airbag 205 to gradually expand. The expanded airbag 205 serves as an indicator, thereby enabling timely observation of the leaked gas and allowing for rapid response and judgment.

[0043] In other words, the sealing component 2 of this utility model not only effectively improves the sealing performance of the flange, but also enables timely observation of leaked gas, thereby allowing for rapid response and judgment.

[0044] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-sealing hydrogen collection device for hydrogen production equipment, comprising a collection tank (1), characterized in that, An air inlet pipe (101) is fixedly installed on the top of the collection tank (1), and an air supply pipe (102) is fixedly installed on the air inlet pipe (101) through a flange. A sealing assembly (2) is fixedly installed on the top of the collection tank (1). The sealing assembly (2) includes a movable block (201), a pressure block (202), and a housing (203). The movable block (201) is movably installed on the top of the collection tank (1). The movable block (201) is located on both sides of the air inlet pipe (101). The pressure block (202) and the housing (203) are both fixedly installed on the movable block (201). The pressure block (202) and the flange are located in the housing (203). The pressure block (202) abuts against the flange. A sealing strip (204) is fixedly installed in the pressure block (202). An airbag (205) is fixedly installed at the bottom of the housing (203).

2. The high-sealing hydrogen collection device for hydrogen production equipment according to claim 1, characterized in that, A connecting plate (206) is fixedly installed on the top of the collection tank (1). An adjusting bolt (207) is movably installed on the connecting plate (206) by means of a thread. The connecting plate (206) is located on both sides of the flange. One end of the adjusting bolt (207) is movably connected to the moving block (201).

3. A high-sealing hydrogen collection device for hydrogen production equipment according to claim 2, characterized in that, A locking block (208) is fixedly installed on the movable block (201). The locking block (208) is located at the top and bottom of the flange and abuts against the flange.

4. A high-sealing hydrogen collection device for hydrogen production equipment according to claim 1, characterized in that, Multiple pressure blocks (202) are provided, and the multiple pressure blocks (202) are arranged to form a ring. The sealing strip (204) is located at the center of the pressure block (202).

5. A high-sealing hydrogen collection device for hydrogen production equipment according to claim 4, characterized in that, Multiple housings (203) are provided, and the multiple housings (203) are evenly spaced on the flange.

6. A high-sealing hydrogen collection device for hydrogen production equipment according to claim 5, characterized in that, The housing (203) has a cavity inside, the airbag (205) is connected to the cavity, and a spring is fixedly installed inside the airbag (205).